Building a Cash Flow Buffer for Geelong Allied Health Practices

Why cash flow is different for allied health

Physiotherapists, psychologists, speech pathologists and OTs across Geelong face a cash flow problem most retail or trade businesses don't: you deliver the service now but often get paid weeks later. A private client pays on the day. An NDIS participant's plan manager might take two weeks. A TAC claim might take a month or more. Meanwhile your rent, wages and super are due on fixed dates regardless of who's paid you.

This mismatch between when you earn revenue and when it lands in your account is the single biggest cause of cash flow stress in allied health practices — not a lack of profitability. Many Geelong practices are profitable on paper but still scrambling to cover payroll because the timing doesn't line up.

How much buffer do you actually need

A cash flow buffer is a separate pool of funds, held outside your everyday operating account, sized to cover your fixed costs while you wait on outstanding payments. As a rule of thumb for allied health practices with a mix of NDIS, Medicare and private billing:

• 6-8 weeks of fixed operating costs — rent, wages, super, loan repayments, insurance — is a realistic starting target for most solo-to-small practices.
• 10-12 weeks if TAC or workers compensation claims make up more than 30% of your billing, given the longer settlement timeframes.
• 4-6 weeks if your practice is mostly private-pay with a small NDIS or Medicare component.

Work this out by pulling your total monthly fixed costs from Xero and multiplying by the number of weeks that suits your payer mix. This isn't money for growth or a new treatment room — it's insurance against timing gaps.

Medicare, NDIS and TAC payment timing

Each payer behaves differently, and understanding this is critical to sizing your buffer correctly:

• Medicare bulk billing: generally paid within 1-3 business days once a claim is submitted correctly, making it the fastest and most predictable payer.
• NDIS (self-managed or plan-managed): claims submitted through the myplace provider portal are usually paid within 2-3 business days, but incorrect line items, expired plans or missing service agreements can push this out several weeks while a claim is queried or resubmitted.
• NDIS (agency-managed): can take longer again, particularly where a support coordinator needs to approve claims first.
• TAC (Transport Accident Commission): as a Victorian statutory scheme, TAC often requires supporting clinical notes or treatment plans before invoices are approved. New providers or complex claims commonly see 30-45 day payment cycles.

If your Geelong practice takes referrals across all three — a common setup for physiotherapy and psychology clinics near the Bellarine, Waurn Ponds and Geelong CBD — your buffer needs to be sized around your slowest significant payer, not your average.

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Setting up a buffer account in Xero

You don't need complicated software to build discipline around this — you need a system that makes the buffer visible and hard to raid accidentally. In Xero we typically set this up as:

• A dedicated bank account (most banks let you open a second transaction or savings account in minutes) connected via a live Xero bank feed.
• Tracking categories for NDIS, Medicare, TAC and private income so you can see settlement patterns by payer over time, not just total revenue.
• A recurring transfer rule — many practices move a fixed percentage of each week's banked income (commonly 10-15%) straight into the buffer account before it can be spent elsewhere.
• A short cash flow forecast report, reviewed monthly, that flags upcoming BAS, super guarantee and PAYG withholding due dates against your current buffer balance.

This is exactly the kind of setup a Xero Certified Advisor builds once and then monitors — it removes the guesswork from "can we afford payroll this fortnight."

What to do when a payer is late

Even with a solid buffer, chase late payments actively rather than waiting them out:

• Follow up NDIS claims rejected or stuck in the portal within 48 hours — the longer they sit, the further back in the queue they can fall.
• For TAC claims, confirm the claim number and case manager details are recorded correctly from the first invoice — this is the most common cause of delay.
• Keep an aged receivables report live in Xero and review it weekly, not monthly, if NDIS or TAC make up a large share of your billing.
• Don't let overdue receivables blur into "we'll deal with it at BAS time" — by then the cash gap has usually already forced a decision on wages or super.

Tax and super obligations that can't wait

Cash flow stress doesn't excuse late compliance. Under the Superannuation Guarantee (Administration) Act 1992, super is due quarterly (28 days after quarter end) regardless of whether your NDIS or TAC invoices have cleared. Missing this deadline triggers the Superannuation Guarantee Charge — which includes interest and an administration fee, and is not tax-deductible under the ITAA 1997.

Similarly, BAS lodgement and payment obligations sit under the Taxation Administration Act 1953. Late lodgement can attract Failure to Lodge penalties, and unpaid amounts accrue the General Interest Charge (GIC) daily. As a registered BAS agent, we can often negotiate a payment plan or short extension with the ATO — but this needs to happen before the due date, not after a demand letter arrives.

Building the habit: monthly cash flow reviews

A buffer only works if someone actually checks it. Set a recurring 30-minute slot each month to review:

• Current buffer balance against your target (in weeks, not just dollars)
• Aged receivables by payer type — NDIS, Medicare, TAC, private
• Upcoming BAS, super and payroll tax dates for the next 60 days
• Any trend of slower payments from a particular plan manager or case manager

Practices that do this consistently rarely get caught out by a single slow TAC claim or a rejected NDIS batch — because the buffer has already absorbed the gap.

The bottom line: a cash flow buffer isn't a luxury for allied health practices juggling NDIS, Medicare and TAC billing — it's the mechanism that separates practices that grow steadily from those that lurch from one payment delay to the next. Start with a clear weekly-cost figure, size your buffer to your slowest payer, automate the transfer in Xero, and review it monthly. That's the whole system.